jessibaby jessibaby

03-06-2016
Mathematics

contestada

A regular square pyramid has a base length of 6 cm. The slant height of the pyramid is 9 cm. What is the surface area of the regular pyramid?
a. 90 cm2
b. 120 cm2
c. 144 cm2
d. 252 cm2

Respuesta :

whiskeyo whiskeyo

03-06-2016

l = 6 cm
h = 9 cm
A = l×l + 4×1/2×l×h = 6×6 + 2×6×9 = 36 + 108 = 144 sq cm

Answer Link

Otras preguntas

Which of the following pairs would make a good buffer? A. H2C2O4 and HC2O4- B. HCl and NaOH C. CH3COOH and NaOH D. HNO3 and NO3-

What Is the equation of a line with a slope of -8 and y-intercept of 5

you have 160 yards of fencing to enclose a rectangular region. find the maximum area of the rectangular region

Write balanced complete ionic equation for K2SO4(aq)+CaI2(aq)→CaSO4(s)+KI(aq)

To express his meaning directly to the reader, the playwright uses dialogue and _____. plot structure stage directions style

what percent os 3/4 is 1/8

at 5pm two hip started sailing toward each other from ports which were 300 miles apart at average rates of 20 and 25 mes per hour. at what time were the ships s

the value of a new 3500 sailboat decreases 10% per year. find its value after 1 year

the value of a new 3500 sailboat decreases 10% per year. find its value after 1 year

Who was the first president of China?